设需要水x千克,由题意得:
1:80=15:x
x=80×15
x=1200;
15+1200=1215(千克);
答:能配制成1215千克消毒药水.
故选:C.
一种药水是药粉和水按照1:80的比例制成的.现有15千克药粉,可配制这样的药水( )千克. A.80 B.1200 C.1215
一种药水是药粉和水按照1:80的比例制成的.现有15千克药粉,可配制这样的药水( )千克.
A. 80
B. 1200
C. 1215
A. 80
B. 1200
C. 1215
数学人气:264 ℃时间:2019-11-23 05:06:45
优质解答
我来回答
类似推荐
猜你喜欢
- 1把一个棱长是4dm的正方体木块削成一个最大的圆柱,这个圆柱的体积是多少立方分米?削去部分的体积是多少
- 2看看这句话对不对 Is this the book which you are looking for?
- 3It took me two hours to do my homework yesterday,为什么要用 took
- 4()除以16=3/4=():24=36:()
- 5一个质子由两个u夸克
- 6One day a visitor came to Nasreddin's house."I am your cousin from Konya," he said,"and I have brought you a duck to cel
- 7The bell is ringing.It is time that we _____the class.
- 8已知3x²-x=1,则6x³+7x²-5x+2000的值为?
- 9把小数点后面的零去掉,小数的计数单位就发生改变吗?
- 10实验室中加热分解31.6克高锰酸钾和分解多少克过氧化氢所得的氧气质量一样多